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Updates: last update's detail

Point of situation Cantegrit- Argia-Hernani

Source: RTE - DIESE
04/09/2019

RTE has continued to work on the analysis of the 400kV Cantegrit – Argia - Hernani line after a first diagnostic phase which led to the July 10th communication. The continuation of those analysis were necessary in order to precisely clarify the consequences on the exchange capacities between France & Spain, and to optimize the construction work planning so as to minimise the capacities exchange reduction and therefore the market impact.

The current planning foresees, under normal circumstances, works aiming at removing weak points and taking place until November 15th 2019. Those works do not all require the line to be put fully offline and are as much as possible mutualised with interventions already scheduled. During those works, exchange capacities on the French-Spanish border will remain limited to roughly 1/3 on average of the historical capacity.

At the end of the works, cross-border capacities should rise significantly, although without reaching the level before the incident, due to the deterioration of the cables on the related lines. RTE therefore estimates today that exchange capacities on the French-Spanish border will remain roughly at 90% on average of the historical capacity.

The tables below indicates more precisely, for each period, the expected reduction of the baseline capacities on the French-Spanish border vs. the historical ones expected before the incidents.

During the work phase:

Export/Import

Summer (April 2019 - September 2019)

Winter (October 2019 - 15 November 2019)

Peak Hours

Off-Peak Hours

Peak Hours

Off-Peak Hours

Historical Baseline Capacity(in MW)

2300

1900

2200

2200

2900

2200

2700

2500

As of today Baseline Capacity(in MW)

1500

1500

1000

2000

1700

1500

1200

2000

Baseline Capacity Reduction

35%

21%

55%

9%

41%

32%

56%

20%

After the work phase:

Export/Import

Winter (15 November 2019 - March 2020)

Summer (April 2020 – September 2020)

Peak Hours

Off-Peak Hours

Peak Hours

Off-Peak Hours

Historical Baseline Capacity(in MW)

2900

2200

2700

2500

2300

1900

2200

2200

As of Today Baseline Capacit(in MW)

2600

2000

2400

2300

2100

1800

2000

2100

Baseline Capacity Reduction

10%

9%

11%

8%

9%

5%

9%

5%

Important note on capacities mentioned in this communication or in the tables above:

Baseline capacities are provided for information purpose, they are calculated based on a full grid assumption

Detailed values hour by hour and taking into account all unavailabilities are updated on a monthly basis (in M-1 for M) and on a weekly basis (S-1 for S) according to the standard capacities publication process. They are available on the Service portal and the Customer portal

Historical capacities correspond to RTE’s vision before the March 28th and 31st, 2019 incidents.